Parkside 12v 5 Ah Battery
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This is a fully 3D printable 12v 5 Ah Parkside Battery with a BMS.
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- Printables
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- Tools
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- Creative Commons — Attribution — Share Alike
UPDATE:
Added a new and improved version that fits the tools way better and has better tolerances.
This is 12v Parkside Battery designed for 21700 Lithium cells. you can therefore achieve capacities exceeding the Parkside Performance 12v 5 Ah batteries that aren't always available. That's why I wanted to design this thing: I can just built my own high capacity 12v batteries. The cells+the BMS cost around 9 Euros.
The cells I used are INR21700-M50L: https://www.nkon.nl/de/inr21700-m50l-4800mah-7-2a-clear-wrap-3.html
The BMS I used is just the cheapest I found on Amazon: https://www.amazon.de/dp/B08FY6TNWY?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1
I used a spot welder with nickel strips for building the 3s 1p battery and then used wires to connect to the nickel strip connection terminals. I think the figures show how it should come together. I used some CA glue to glue the part with the connection terminals to the top. of the main body.
I first printed in PLA but I suggest you don't use PLA because the terminals will get hot and they melted the plastic a bit so the connection to the tool got bad.
I recommend printing in ABS/ASA or at least in PETG to get more heat resistance at the terminals.
Have fun building and using it!